## Kerala PSC Previous Years Question Paper & Answer

Title : ASSISTANT ENGINEER ELECTRICAL PLANTATION CORPORATION OF KERALA LTD
Question Code : A

Page:8

Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'ASSISTANT ENGINEER ELECTRICAL PLANTATION CORPORATION OF KERALA LTD' And exam conducted in the year 2018. And Question paper code was '029/2018'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.

page: 8 out of 16
Excerpt of Question Code: 029/2018

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Which one of the following law is helpful to determine the most economical size of the electric
power transmission line conductor ?

(ಹ) Ohms Law (B) Kirchoff's Laws (ಲ) Faradays Law (D) Kelvin's Law

Three 100 Q resistances are connected in delta and are connected to a 400 V, 3 phase, and
50 Hz ac supply. If one of the resistance is burned out what will be the reduction in power
consumption ?

(ಹ) 400 W (B) 800W © 1600 W (D) 3200

What will be the value of the regulation of the single phase transformer with percentage
resistance drop 2% and percentage reactance drop 8% at a power factor of unity.

@) 2 ൫ 5 © 8 യു 10

A 30 kVA Delta bank is created by using 3 similar single phase transformers. When one of
the transformer is removed then what will be the capacity in kVA of the new
arrangement ?

(ಹ) 127 ൫ 173 © 20 യു 30

A standard incandescent lamp having a lumen intensity of 160 Cd in all directions gives an
illuminance of 40 lux at the surface of a table vertically below the lamp. What is the distance
of the lamp above the table ?

(ಹ) 18 (8) 28 (ಲ) 38 D) 4m

Which one of the following is not the name of ACSR Conductor ?
(ಹ) ಹಗ ட 02௦௦ (© WOLF (D) TIGER

Saving of copper in an autotransformer, compared to ordinary transformer is given by
times weight of copper in ordinary transformer.

@) X ® 1/K © ‏عد‎ യു ‏وحو/د‎

Calculate the number of sub circuits required for an electrification circuit which contains 28
lamps of 100 W.

@ 1 ® 2 © 3 യു 4

Calculate the number of street lights required for 3 km long street which is to be illuminated
by 85 W sodium vapour lamp at a span of 30 meter.

(ಹ) 98 ൫ 99 © 100 യ) 101

029/2018 8 A

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